Who is the parent company of Flow?

Excuse me, could you please clarify something for me? I'm trying to understand the corporate structure of Flow, and I'm wondering: Who exactly is the parent company of Flow? I've heard a few names mentioned, but I'm not quite sure which one is accurate. Could you possibly provide me with a definitive answer, or perhaps some more context surrounding this matter? It would greatly assist me in my research. Thank you in advance for your assistance.